Analysis of a 300 MW variable speed drive for pump-storage plant applications

Author

Bocquel, Aurelie ; Janning, J.

Author_Institution

ALSTOM Power Conversion GmbH, Berlin

fYear

2005

fDate

11-14 Sept. 2005

Abstract

A 300 MW drive system consisting of a cyclo-converter driven doubly-fed induction machine for pump-storage stations operating in Goldisthal, Germany, is presented. The cyclo-converter supplied by ALSTOM is one of the largest in the world. Major benefits of this innovative concept are the increase of the turbine efficiency by means of speed variation and the high dynamic power control for the stabilisation of the grid. Major benefits compared to classical approaches are identified. Emphasis is placed on the behaviour of the drive at grid failures. A new modified topology is proposed to meet the grid code requirements at various grid failures

Keywords

asynchronous machines; cycloconvertors; power control; power generation faults; power system stability; pumped-storage power stations; variable speed drives; 300 MW; ALSTOM; Germany; Goldisthal; cyclo-converter; doubly-fed induction machine; grid code requirements; grid failures; grid stabilisation; high dynamic power control; pump-storage plant; turbine efficiency; variable speed drive; Induction machines; Power generation; Power system protection; Pumps; Synchronous machines; Topology; Turbines; Variable speed drives; Voltage; Wind energy generation; Adjustable speed drive; Doubly fed induction motor; Fault handling strategy; Generation of electrical energy; Industrial application;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics and Applications, 2005 European Conference on

Conference_Location

Dresden

Print_ISBN

90-75815-09-3

Type

conf

DOI

10.1109/EPE.2005.219434

Filename

1665624